Diversity analysis of proximate principles, macro and micro nutritional traits in fodder cowpea

Assessing nutritional diversity in fodder cowpea (Vigna unguiculata L. Walp.) is essential for genetic improvement of fodder quality. Nutritional diversity analysis helps to identify superior genotypes that enhance livestock nutrition and overall productivity. This study evaluated twenty-two fodder cowpea genotypes to quantify variation in proximate principles and mineral nutrient composition. Results revealed significant variation among the genotypes for different nutritional traits. Proximate traits such as dry matter, crude protein and crude fibre content ranged from10.99 - 24.43 %, 8.26 - 23.54 % and 23.67 - 35.79 %, indicating considerable nutritional diversity. Macro- (Calcium, Magnesium, Phosphorus, Potassium) and micro-nutrient (Zinc, Iron, Copper) concentrations also varied widely among genotypes. Principal component analysis for proximate principles revealed that PC1 & PC2 together contributed 54.83 % of total variability whereas for macro and micronutrients PC1 & PC2 components together contributed 56.66 % of total variability. Exploiting nutritional diversity through systematic breeding and selection strategies could contribute to the development of superior fodder cowpea cultivars with improved feed value, thereby supporting sustainable livestock production.